Wenceslas I, Duke of Saxe-Wittenberg
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| Wenceslas I | |
|---|---|
| Duke of Saxe-Wittenberg | |
 | |
| Elector of Saxony | |
| Reign | 6 December 1370 – 15 May 1388 |
| Predecessor | Rudolf II |
| Successor | Rudolf III |
| Born | c. 1337 |
| Died | 15 May 1388 Celle |
| Spouse | Cecilia of Carrara |
| House | Ascania |
| Father | Rudolf I, Duke of Saxe-Wittenberg |
| Mother | Agnes of Lindow-Ruppin |
Wenceslas I, Duke of Saxe-Wittenberg (c. 1337 – 15 May 1388, in Celle) was an Elector of Saxony and a Prince of Lüneburg. He was the son of Rudolf I and his 3rd wife, Agnes of Lindow-Ruppin.